"She had straggly, waist-length, dirty blonde hair, very pale eyebrows, and protuberant eyes that gave her a permanently surprised look. Harry knew at once why Neville had chosen to pass this compartment by. The girl gave off an aura of distinct dottiness. Perhaps it was the fact that she had stuck her wand behind her left ear for safekeeping, or that she had chosen to wear a necklace of Butterbeer caps, or that she was reading a magazine upside down."
—Description of Luna Lovegood when Harry Potter first meets her
Luna Scamander (née Lovegood) (born c. 1981) was a witch and daughter of Xenophilius Lovegood and his wife. Her mother accidentally died while experimenting with spells when Luna was nine, and Luna was raised by her father, editor of the magazine The Quibbler, in a rook-like house around the village of Ottery St. Catchpole. Luna attended Hogwarts School of Witchcraft and Wizardry from 1992 to 1999 and was sorted into Ravenclaw house. In her fourth year, Luna joined Dumbledore's Army, of which she became an important member.